func filterAttributes()

in exporter/collector/monitoredresource.go [58:85]

26 lines of code
9 McCabe index (conditional complexity)


func filterAttributes(
	attributes pcommon.Map,
	serviceResourceLabels bool,
	resourceFilters []ResourceFilter,
) pcommon.Map {
	attrs := pcommon.NewMap()
	attributes.Range(func(k string, v pcommon.Value) bool {
		// Is a service attribute and should be included
		if serviceResourceLabels &&
			(k == semconv.AttributeServiceName ||
				k == semconv.AttributeServiceNamespace ||
				k == semconv.AttributeServiceInstanceID) {
			if len(v.AsString()) > 0 {
				v.CopyTo(attrs.PutEmpty(k))
			}
			return true
		}
		// Matches one of the resource filters
		for _, resourceFilter := range resourceFilters {
			if match, _ := regexp.Match(resourceFilter.Regex, []byte(k)); strings.HasPrefix(k, resourceFilter.Prefix) && match {
				v.CopyTo(attrs.PutEmpty(k))
				return true
			}
		}
		return true
	})
	return attrs
}